Gun.



PATENTED FEB. 26, 1907.

E. SANNER.

GUN.

APPLICATION PILE-D PEB. 21,1905.

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PATENTED FEB. 26, 1907.

E. SANNBR.

GUN.

APPLIUATIDN FILED PEB.21,1905.

5 SHEETS-SHEET 2.

INVENTOR 3y/clam wwmEsses MM. m @Mr-,

TTORNEY.

PATENTED FEB. 26, 1907.

E. SANNER.

GUN.

APPLICATION FILED FEB. 21,1905.

5 SHEETS-SHEET 3.

MEE m WITNESSES @NQ/me ham/1% ATToRNEYg co.. wAsmNcruN, u. c.

PATENTED FEB. 26, 1907.

E. SANNER.

GUN.

APPLICATION FILED FEB. 21.1905.

5 SHEETS-SHEET 4.

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No. 845,481. PATENTED FEB. 26, 1907. E. SANNEB..

GUN.

APPLICATION FILED FEB. 21.1905.

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\N\TNES5ES INVENTOK ATTORNEYS Vgun between its two barrels.

NTTE STATES PATENT @FFTE.

GUN.

Specification of Letters Patent.

Patented Feb. 26, 1907.

Application ilecl February 21. 1905. Serial No. 246,676.

To a/ZZ whom, t 'may cou/cern:

Be it known that l, EDOUARD SANNER, a citizen of the Republic of France, and residing in St. Etienne, Loire, France, have invented certain new and useful Improvements in Guns, of which the following is a specification.

This invention has reference to small-arms of the kind in which the barrels are fixed, and has for its object to insure their effective operation and safety. A shot-gun provided with a ixed barrel and comprising these improvements is represented in the accompanying drawing, although the same principle may easily be applied to a rifle or other style of gun.

ln the accompanying drawings, Figure 1 is a longitudinal section along the axis of the Fig. 2 is a longitudinal section along the axis of one of the barrels. Fig. 3 is a longitudinal elevation. Fig. 4 is a corresponding plan view as seen from below. Fig. 5 is an end view showing the barrels separate from the stock. Figs. 6, 7, and S are views similar to the foregoing but more particular]yrepresenting the breechblock of the barrels. Fig. 9 shows separately the link of the breech-block. Fig. 10 shows separately the locking-bolt. Figs. 11 and 12 show separately two safety parts ot' the gun. Figs. 13, 14, and 15 are views correspending to Figs. 1 and 2 and serve to assist in explaining the operation. Fig. 16 is a transverse view on the line 16 16 of Fig. 15. Fig. 17 is a horizontal section on the line 17 17 of Fig. 15. Fig. 18 is a detail of the ejector mechanism.

The gun with fixed barrels, as shown in Figs. 1 and 2, comprises two barrels arranged side by side and engaged at a and Z) upon a stock provided with two triggers c and d, pivoted upon a trigger-plate c and protected by a trigger-guardf. Behind the barrels is situated a `breech-block g, arranged in such `a manner as to be capable of rotating in a cylindrical cavity formed transversely at the rear of the barrels and constituting the breechcasing Zz. This breech-block, acting as a movable breech, comprises the percussion members (hammers i, sears j, and spring Zr) for each of the barrels, Fig. 2, and between these members, Fig. 1, locking-bolt Z and a link m, which by the intermediary of a rocking lever fa, pivoted at o, acts simultaneously upon the bolt Z and upon the breech-block g,

I as is hereinafter explained. The gun coml prises in addition two extractor-eiectors p l and p, submitted to the action of the rocking lever n and acting, respectively, upon eac-h of the cartridges or cases which aie contained -in the barrels for the purpose of ejecting them. It likewise comprises a safety device which is at the disposal of' the user of the gun, and which is also adapted to be automatically acted upon by the link both upon the closing and the opening of the barrels, and which is such that the triggers are unable to act unless the block g occupies its closed position and the user desires to iire. Having given this general explanation, the details of each of' the constituent parts that have been enumerated are now given.

The locking of c is obtained, Fig. 1, by means of a latch engaged in a mortise formed in the front of a metal plate a', rigidly iixed to the gun. This latch is maintained in position by a lever b', the front extremity of which acts up on the said latch when its re ar extremity is engaged and maintained by a nose c of the lever n. In order to permit of the release oi the latch in question, it is only necessary to rock the lever b by pressing with the iinger upon the stud d', projecting from the lower part of stock.

The locking of Z) is effected, Figs. 1 and 2, by two latches, Figs. 3, el, and 5, engaging, respectively, in mortises formed in the wall of the breech-chamber ZL. The engagements a and b are completed by noses c and f on the rear of the barrels `and bearing upon each side of the breech-casing ZL.

The breech-block g, Figs. 1, 2, 6, 7, and 8, intended to rotate in the said breech-chamber ZL, is provided upon both sides with circular grooves g, in which engage protuberances 7L of the same kind formed in the breech-casing ZL and serving for the guidance of the block g. The link m, pivoted upon the operating-lever mis provided with a latch t, Figs. 1 and 9, which when the breech is closed is situated opposite a mortise y, formed in the locking-bolt Z. The link is also provided with a nose Zr of T shape intended when the rocking lever a is operated to engage in a recess Z', formed in the periphery of the block g, which is suitably slotted, Figs. 1 and S, for the passage of the said link.

The bolt Z is formed of a fork the arms of which, Figs. 1 and 10, engage between reinl forcements formed upon the prolongation m IOO of the strip comprised between the two barrels, while the body of the said bolt itself works in a mortise formed in the breech-block.

The striking-hammers i i rock at fa, Fig. 2, upon a spindle solid with the block g. They are maintained cocked by the nose of the corresponding sears which likewise rock upon a spindle 0, solid with the block g. Opposite to each sear is situated, Fig. 2, a rod p,

submitted to the action of an antagonistic spring g and upon which the corresponding trigger is able to press for the purpose of rendering the said sear Idisplaceable and of releasing its hammer, which, under the influence of the spring k, strikes the corresponding cartridge. It should, however, be noticed that the action of the triggers cannot be exerted unless the block g completely obturates the barrels. To this end a part r, Figs. 1 and 1 1, rocking at s and submitted to the action of a spring t', presents its nose a to the triggers c and d when the breech is open, Fig. 13, or incompletely closed; but this part releases the triggers when the closing is coinplete-that is to say, when the nose 7c of the link m, completely engaged in the recess l of the breech-chamber h, has caused the part r to rock, Fig. 1, in such a manner as to release the triggers. It will be noticed that the spring t maintains the part r in each of its j positions, and when the gun is opened the I tion to the other.

nose c of the link acts upon the lower arm of this part, while when the gun is closed it acts upon the upper arm. Another part w', rocking at 9c', Figs. 1 and 12, may likewise be arranged across the triggers c and d, so as to oppose their operation, with this difference, that it is rendered available for marksmen b means of a stud y, which is connected therewith by a rod 2. When the stud in question is at the rear, Fig. 1, the triggers are released. When, in the contrary, it is pressed forward, the rod z rocks the part w and places the triggers at safety. The rear and forward positions of the rod z are assured by a small stop a2, which a nose b2 of the said rod is obliged to pass in proceeding from one posi- The rod e is combined with a bolt c2, submitted to the action of a s ring d2, Fig. 1 which in its normal position ocks the breechblock g by engaging in a notch formed in the periphery of this latter. In the operations of opening and closing the breech the bolt c2 yields of itself, compressing the spring d2, which then reacts so as to again bring it into position. l/Vhen it is desired to withdraw the lock g, so as to dismount the gun, however, it is only necessary to draw back the safetystud y in order that the bolt c2, participating in the movement, may release the block g `and permit of the withdrawal from above when the barrels have been removed. ln

. any case the opening of the breech is caused by the operation of the rocking lever m,

which the marksman seizes by its projection e2 and causes it to rock, Fig. 13, around the pivot o. This rocking leverdisplaces with it the link m, the nose of which first acts upon the safety part r, as already explained, and lodges in the notch Z of the block at the same time that its latch i engages in the mortise y" of the breech-bolt, the said link exerting traction upon this latter, so as to release it, and carrying with it the breech-block, which rotates upon itself in such a manner as to uncover the opening of the barrels, Fig. 14.

The opening of the breech is utilized for operating the mechanism for extracting and ejecting the unfired cartridges. This mechanism is constituted, Figs. 1, 15, 16, and 17, by alever f2 and the two other levers g2 g2, all three freely mounted upon the same pivot. The lever f2 is situated between the levers g2 g2. They are respectively acted upon by the springs h2 7b2 with their lower legs bearing in lateral projections on the arms of the lever f2. lhese springs 71,2 h2 tend constantly to separate the levers g2 g2 from the lever f2. The lower arm of the lever f2 strikes against the nose c of the rocking lever n, and those of the levers g2 g2 strike against the counter-nose Q12 of this latter. The nose c of the lever n acts upon the lever f2 by its plane surface z, Fig. 18, over which the end of the lever f 2 slides. 1f that plane surface were radial to the center o, it might not act 3 but it is tangential to a circle drawn from the center o, and therefore acts as a cam. The spring h2 is compressed, but not sulliciently to make the parts bind. As soon as the end of the lever2 is past the surface z the spring h2 forces the end of the lever against the end and down the other side to the nose c. The cut y in the side of the lever f 2 prevents the nose c from binding the lever rr1, as it revolves further. The upper arms of the levers f2 and g2 are side by side, Fig. 16, and situated opposite the rod of the extractor-ejectors p p, which surround particularly the rims of the cartridges upon the sides adjacent to the aperture of the barrels. The mechanism in question also comprises two levers j2 y'z, Figs. 2, 15, 16, and 17, pivoted at k2 and each submitted to the action of the spring Z2 Z2. The said levers are intended to maintain in position at a given moment, by means of the lateral projections o2 which they carry, the levers g2 g2, and their Jfree extremities are engaged in the breech-chamber in such a manner that they extend into the pathfollowed by hammers i i. During the operation of the breech the finger i2 leaves the levers g g2, which come to bear on the lateral projections 02, Fig. 15, of the levers i2 at the same time that the nose c of the rocking lever acts upon the lever f 2, which rocks slightly and displaces by some millimeters, Fig. 15, the extractor-ejectors p p in such a manner that they pull on the rims of the cartridges and effect the extrac- IIO nsolid' yvith the barrels', enter'the block gr"l through appropriate openings and press upon the hammers situated therein, l* ig. 14, so as to bring them into the cocked position in Which they are assured by sears, as above stated. lt might also be noted that the rocking lever n is maintained in the open position by the engagement of its nose c with the lever f2, submitted to the action of the springs h2 h2.

ing back the rocking lever n into Contact With the trigger-guard in order to render the gun ready for tiring. The firing cannot, however, actually take place unless the closing is complete, as has already been explained,

and unless the safety-stud y is situated at the rear.

l claim as my inventionl. A breech mechanism comprising a rotary breecli-block placed transversely behind g the barrels, hammers inclosed Within said block, and means at the end of the barrel adapted to enter an appropriate opening in the block for automatically cooking the hammers When the block is opened.

2. A breech mechanism comprising a rotary breech-block placed transversely behind the barrels, hammers inclosed Within said block, triggers for releasing the hammers, means for rotating the block and means operated thereby for locking the triggers while the breech is open and for releasing the same upon the closing of the breech.

3. A breech mechanism comprising a rotary breecli-block placed transversely behind l In these conditions it is only l necessary to insert fresh cartridges in the barrels and also to close the breech by movl l 1 l l Y the barrels, hammers inclosed Within said block, triggers for releasing the haninlers, means for rotating the block and a safety j spring-bolt operated thereby Which locks the triggers While the breech is open and releases l the same when the breech is closed.

4. A breech mechanism comprising a rotary breech-block placed transversely behind the barrels, hammers iiiclosed Within said block, triggers for releasing the hammers, a

} lever for rotatinothe block a link o erated Y e i y P l by said lever, a projection on said link, and a pivoted safety-catch provided with a projection adapted to engage the triggers on rotation of the catch and also with a forked projection adapted to receive the projection on said link, whereby on opening the breech said safety-bolt is b rought into engagent ent with the triggers and is released from such engagey ment upon closing the breech.

5. A breech mechanism comprising a rotary breecli-block placed transversely behind l the barrels, hammers in closed Within said block, triggers for releasing said hammers, y means to rotate the block, neans operated l thereby to lock the triggers While the breech is open and for releasing the sante upon the closing of the breech in combination with a safety-stud independently operated.

6. A breech mechanism comprising a rotary breech-block, a rocking lever and means to operate the same, in comtination with an automatic ejecting device consisting in an ejecting-pin, tivo sets of levers acting thereupon actuated by the rocking lever, a spring acting upon said levers to force them in opl posite directions, a spring-actuated catch in I connection With one set of said levers, and l means to free said spring-actuated catch,

sulstantially as described.

In testimony whereof I have signed my name to this specication in the presence of two subscrileing Witnesses.

EDOUARD SANNER.

Witnesses:

JEAN CREMERIEUX, JACQUES ELNARD. 

